EP 1292152 A1 20030312 - IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD
Title (en)
IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BILDVERARBEITUNG
Title (fr)
DISPOSITIF ET PROCEDE DE TRAITEMENT D'IMAGE
Publication
Application
Priority
- JP 0104627 W 20010531
- JP 2000166312 A 20000602
Abstract (en)
[origin: US2002114528A1] The speed of decoding processing for variable-length coded image data is improved. The image processor includes a variable-length decoding unit for variable-length decoding input data and outputting a pair of the run length of zero coefficients and a non-zero coefficient; an inverse quantization unit for subjecting the non-zero coefficient to inverse quantization and obtaining inverse quantized data to be output; an address setting unit for carrying out inverse scanning, obtaining an address for storing the inverse quantized data on the basis of the run length of zero coefficients and specifying the address in the data storage unit; a write information storage unit for setting a write flag in an address thereof corresponding to the specified address; and a data reading unit for reading data from the data storage unit, and on the basis of information stored in the write information storage unit, directly outputting data from the address specified by the address setting unit while substituting a predetermined value for data from an address other than the specified address to output the substituted value.
IPC 1-7
IPC 8 full level
G06T 9/00 (2006.01); H03M 7/46 (2006.01); H04N 7/26 (2006.01); H04N 7/30 (2006.01); H04N 19/423 (2014.01); H04N 19/44 (2014.01); H04N 19/60 (2014.01); H04N 19/625 (2014.01); H04N 19/91 (2014.01)
CPC (source: EP US)
H03M 7/40 (2013.01 - EP US); H04N 19/129 (2014.11 - EP US); H04N 19/132 (2014.11 - EP US); H04N 19/18 (2014.11 - EP US); H04N 19/42 (2014.11 - EP US); H04N 19/60 (2014.11 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 2002114528 A1 20020822; US 6987811 B2 20060117; DE 60144228 D1 20110428; EP 1292152 A1 20030312; EP 1292152 A4 20090325; EP 1292152 B1 20110316; JP 3940672 B2 20070704; WO 0195637 A1 20011213
DOCDB simple family (application)
US 4836002 A 20020201; DE 60144228 T 20010531; EP 01934474 A 20010531; JP 0104627 W 20010531; JP 2002503044 A 20010531